Programming
Fail-Safe Systems
A5E00085588-03
5-19
6. Optional: Interconnect the QBAD output to find out if a substitute value or valid
process value is output. Value status (quality code) of the process value
7. Optional: Evaluate the QUALITY output in the standard program or on the OS
to obtain or find out the quality code of the process value.
8. Interconnect the relevant ACK_REI input with the signal for the
acknowledgment of reintegration (see "Passivation and Reintegration").
9. Interconnect the simulation I/Os (optional, see "Simulation Mode").
10. Interconnect the diagnostic outputs DIAG_1/DIAG_2 of the F module drivers
F_M_DI8 or F_M_DI24 if you want to evaluate in the standard program
whether discrepancy errors have occurred (optional, see Descriptions of the F
Driver Blocks). You can use this information to program messages about
discrepancy errors to the OS.
11. Place and interconnect the F module drivers manually or automatically.
Note
You can read out byte 0 of DIAG_1/DIAG_2 for service purposes in the event of an
error in CFC test mode.
Placing and Interconnecting the F Module Drivers Automatically
You have two options:
• At any time before you compile the Safety Program :
In Simatic Manager, choose the Options > Charts > Generate Module
Drivers menu command. Open the Properties dialog box and make sure that
the PCS 7 Drivers\PCS 7 Drivers\Blocks library is set. Confirm by clicking OK
twice.
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